SOLUTION: Use the properties of addition and multiplication to complete the statement. (5 + 18) + 4 = 5 + ( ____ + 4)

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Question 40056: Use the properties of addition and multiplication to complete the statement.
(5 + 18) + 4 = 5 + ( ____ + 4)
Found 2 solutions by dyonak, fractalier:
Answer by dyonak(3) About Me  (Show Source):
You can put this solution on YOUR website!
(5 + 18) + 4 = 5 + ( ____ + 4)
Changing the ____ to an x for simplicity
23+4 = 5+(x+4)
27 = 5+(x+4)
22 = x+4
18 = x

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Using the associative property of addition, we have
(5 + 18) + 4 = 5 + (18 + 4)
Here grouping does not change the value of the expression.